Some elements of the gauge flicker when used on Internet Explorer

Tihauan / jsgauge

Automatically exported from code.google.com/p/jsgauge

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Some elements of the gauge flicker when used on Internet Explorer #2

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago

The jsgauge works beautifully when viewed locally or on network server.  But on 
the Internet some elements of the gauge flicker i.e. caption, value, min and 
max label flash on and off until the pointer stops.

Tested on IE7 only.

The gauge is updated on the OnChange event of several input fields.

Original issue reported on code.google.com by ypipe...@googlemail.com on 27 May 2011 at 7:57

GoogleCodeExporter commented 9 years ago

This is reproducible using the Live example.

Original comment by justin.e...@gmail.com on 27 May 2011 at 1:18

GoogleCodeExporter commented 9 years ago

Original comment by justin.e...@gmail.com on 27 May 2011 at 1:19

Changed title: Some elements of the gauge flicker when used on Internet Explorer

GoogleCodeExporter commented 9 years ago

An important issue with IE was that the animation of the value was fired every 
40 msec without waiting for the frames to redraw. This can set the cpu usage to 
100% even on a fast machine. This was solved in r23.

Original comment by dragos.tihauan on 29 May 2011 at 9:36

Changed state: Accepted

GoogleCodeExporter commented 9 years ago

Unfortunately the flickering still occurs when viewed online from our server.  
However, the live example works smoothly and without any flicker on the same 
laptop! 

So I guess our Internet server is to blame - on a ping test, the average speed 
is 130ms but I don’t know if that is the root cause?

Original comment by ypipe...@googlemail.com on 1 Jun 2011 at 8:16

GoogleCodeExporter commented 9 years ago

Original comment by dragos.tihauan on 4 Jun 2011 at 9:48

Added labels: Milestone-0.4

GoogleCodeExporter commented 9 years ago

Is it possible that you could have been using a cached version of gauge.js 
during your follow-on testing? Could you please confirm this is still a problem 
after clearing your browser cache?

Also this may be asking a lot, but if this is still an issue for you, would it 
be possible to post a link to this server or another one that can demonstrate 
the problem?

Original comment by justin.e...@gmail.com on 8 Jun 2011 at 1:45

GoogleCodeExporter commented 9 years ago

I think the flickering is caused because there is no doctype in the website I 
am using (I'm not sure why this is missing, the website is old and uses 
frames). If you delete doctype info the flickering occurs on the live example, 
but if you add <!DOCTYPE HTML>, the flickering goes away.

So I concluded the flickering is due to the Doctype not being declared. 

Unfortunately I cannot add or edit the Doctype, as my software editor only 
allows access to the HTML code between the <body> tags. 

Therefore the flickering problem is due to lack of doctype declaration in our 
software and not a defect in the JSGauge. 

Thanks again for looking into this issue.

Original comment by ypipe...@googlemail.com on 8 Jun 2011 at 7:17

GoogleCodeExporter commented 9 years ago

You're welcome - Thank you very much for clarifying!

Unfortunately doctype is an important part of the page - I have seen similar 
issues with other JavaScript libraries when a doctype was not specified. This 
is outside the scope of this ticket, but perhaps as a workaround - if you 
cannot change the doctype directly - perhaps you could insert an iframe 
containing the gauge? Anyway, I hope you find a way around this particular 
issue...

Original comment by justin.e...@gmail.com on 8 Jun 2011 at 8:17

GoogleCodeExporter commented 9 years ago

Original comment by dragos.tihauan on 16 Jun 2011 at 7:45

Changed state: WontFix